package pers.mobian.myblog.handler;



import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;


@ControllerAdvice
public class ControllerExceptionHandler {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @ExceptionHandler(Exception.class)
    public ModelAndView exceptionHander(HttpServletRequest request, Exception e) throws Exception {
        logger.error("Request URL : {}, Exception : {} ",request.getRequestURL(), e);

        //对于标注了状态码的异常，我们就不再这里自从处理，而是交给SpringBoot本身去处理
        if(AnnotationUtils.findAnnotation(e.getClass(), ResponseStatus.class) != null) {
            throw e;
        }

        //我们自定义的异常处理
        ModelAndView mv = new ModelAndView();
        mv.addObject("url", request.getRequestURL());
        mv.addObject("exception", e);
        mv.setViewName("error/error");

        return mv;
    }

}
